*{
    margin:0;
    padding:0;
    list-style: none;
    box-sizing: border-box;
}

.wrap{
    margin: 50px auto;
    width:800px;
}
table{
    width:100%;
    text-align: center;
    border-collapse: collapse;
}

table tr{
    height:46px;
}

.mask{
    position: fixed;
    left:0;
    top:0;
    background: rgba(0,0,0,.3);
    width:100%;
    height:100%;
}
.content{
    position: fixed;
    width:300px;
    /* height:200px; */
    padding:20px;
    text-align: center;
    background: #fff;
    left:50%;
    top:50%;
    transform: translate(-50%,-50%);
    border-radius: 25px;

}

.content p {
    margin: 10px 0;
}

.content button{
    float: right;
}

.content input{
    width:100%;
    height:36px;
}